Liquid-atomizer.



K. M. DAHL.

LIQUID ATOMIZER. APPLIOATION FILED AUG.2,'1911.

1,61 1,036, Patented Dec. 5, 1911.

WITNESSES k I 7 wow run smarts Parana orator.

KNUT M. DAHL, OF SAN FRANCISCO, CALIFORNIA, ASSIGNOR TO UNION IRON WORKS C0., OF SAN FRANCISCO, CALIFORNIA, A CORPORATION OF CALIFORNIA.

LIQUID-ATOMIZEE.

\ To all whom it may cmwcm:

citizen of the United States, residing in the.

city and county of San Francisco, State of California, have invented a new and useful Liquid-Atomizer, of which the; following is a specification.

My present invention relates to a novel construction and arrangement of a liquid atomizer, wherein the only agent employed for the atomization of the liquid, such as crudeoil, water or any other desired liquid, is the pressure of the liquid itself.

In a co-pending application, filed by me on June 12th, 1911, Serial No. 632,711, I have described and broadly claimed a novel construction of a liquid atomizer wherein the liquid is atomized owing to the pressure to which such liquid or fuel is subjected, and in my present invention, I have devised a novel and simplified construction wherein the construction of the parts have been greatly simplified with a consequent ,reduction in the cost of manufacture.

My invention further consists of a novel construction of an atomizer disk.

It further consists of a novel construction of an atomizer tip:

It further consists of a novel construction of a liquid atomizer, wherein novel means are employed for causing the liquid, which is being forced under pressure, through the atomizer to be atomized by. the pressure of the liquid.

It further consists of other novel features of construction all as will be hereinafter fully set forth.

For the purpose of illustrating my invention, I have shown in the accompanying drawings, one form thereof which is at presentpreferred by me, since the same has been found in practice to give satisfactory and reliable results, although itis to bezunderstood that the various 'instrumentalities of which my invention consists can be variously arranged and organized and that my in- ,vention is not limited to the precise arrangement and organization of these instrumentalit ies as hereinshown and described.

Figure 1, represents a central section of a liquid atomizer embodying my invention.

Fig. 2 represents a plan View of the atomizing disk, detached position. Fig. 3 represents a central section of Fig. 2. Fig. 4.

Specification of Letters Patent.

Application filed August 2, 19-11.

Patented Dec. 5, rear.

Serial No. 641,929.

represents a central section of the tip in detached position.

Similar numerals of reference indicate corresponding parts in the figures.

Referring to the drawings: 1 designates the body portion of my device which is provided with the internal bore or passage 2, I

a portion of which is threaded as indicated at 3, thereby adapting the same to have detachably connected therewith the threaded end of a conduit 4 which communicates with the source of liquid supply which itis desired to atomize, it beingrunderstood that the liquid or fuel is forced through the conduit i under any desired or predetermined pressure. The forward or outer end of the internal bore 2 is beveled or inclined outwardly, as is indicated at 5, and the front face of the body portion 1 is faced ed as is indicated at 6. thereby adapting the same to have seated thereon an atomizing disk 7 which is provided with a rearwardly extending lug or projection 8. The atomizing disk 7 is provided near its outiirperiphery with a desired number of ports 9,which extend therethrough, and towhich the liquid to be atomized passes owing to the manner in which the internal bore 2. of the body at 5. The forward or front face of the atomizer disk 7 .is provided with a circular recess 10 of any desired depth, which communicates by means of the tangential ports or passages 11 with the ports 9, it being noted that in the present instance, the front face of the atomizing disk 7 is flattened or faced ofi, as is indicated at 12, thereby adapting the same to have seated thereon the tip 13, which, when the parts are in assembled position, closes the forward end of the ports 9, as will be apparent from Fig. 1. lhe tip 13 consists of a flat disk having an aperture 14 therethrough.

15 designates a clamping nut which 18 internally threaded as is indicated at 16, thereby adapting the same to engage with the exterior threaded portion 17 of the body portion 1. The clamping nut 15 is provided with an inwardly extending flange 18 which forms a shoulder 19, having a flattened face adapted toseat on the atomizer tip 13, while the outer face or forward end of the clamping nut 15 is provided with the outwardly flared or beveled portion 20, it being noted that the outwardly flared or beveled portion 20 inclines outwardly from the forward edge of the walls of the aperture 21, formed by the inner face of the flange 18.

In asembling my device the atomizing disk 7 is seated on the forward face 6 of the body portion 1, and the atomizer tip 13 is seated on the front face 12 of the atomizer disk 7, whereby when the clamping nut 15 is secured in assembled position with respect to the body portion 1, the parts will be maintained in their proper assembled position, as is evident.

The operation of my novel atomizer will now be apparent to those skilled in the art to which this invention apertains, and is as follows. The liquid under pressure enters from a source of liquid supply through the conduit 4 into the chamber formed by the internal bore 2, of the body portion 1. The liquid then passes to the ports 9 and thence through the tangential ports or passages 11, to the chamber formed by therecess 10 and the wall of the atomizer tip 13, and

owing to the novel manner in which this chamber is formed the liquid will be given a rotary whirling, or centrifugal motion so that as it passes through the-discharge port or aperture 14, in the atomizer tip 13, it will pass therefrom in the form of a fine spray, such action being increased owing to .the novel manner in which the forward face of the clamping nut is formed, although, as

'is apparent, the flaring of the forward face of the clamping nut is not essential, in all cases arising in practice.

Special attention is directed to the novel manner in which the liquid under pressure has imparted thereto a rotary'or whirling movement before it passes through the discharge port 14 in the atomizer tip 13.

So far as I am aware Iam the first to devise a construction wherein the pressure of the liquid will cause the liquid to receive a rotary whirling or centrifugal movement, in close proximity to the discharge port in the atomizer tip, in the manner herein set forth, and it is to be understood that my claims to 1 such features are to be interpreted with corp with in practice.

responding scope. I The numberpf ports such as 9 and 11 may vary in accordance with the conditions and requirement met Special attention is directed to the novel and simplified constructibn of the atomizing disk 7, and also of the atomizing tip 13.

It will now be apparent that I have devised a novel and useful construction of a liquid atomizer which embodies the features of advantage enumerated as desirable in the statement of the invention and the above description, and while I have, in the present instance, shown and described a preferred embodiment thereof which has been found in practice to give satisfactory and reliable results, it is to be understood that the same is susceptible of modification in various particulars without departing from the spirit or scope of the invention or sacrificing any of its advantages.

Having thus described my invention, what I claim as new and desire to secure by Let,

ters Patent, is I 1. In a liquid fuel atomizer, a body portion having a passage therethrough provided with a flaring outlet, an 'atomizing disk having an extension projecting rearwardly into said passage, said disk having a port extending forwardly therethrough, and having a recess in its forward face and provided with a port leading tangentially into said recess ing a circular shaped recess and ports leading tangentially into said recess and communicating with said first named ports, a

disk having a port therethrough and seated on said atomizingdisk, and a clamping nut detachablyconnected with said body portion and having a flange engaging said t1p to secure the parts in assembled condition.

KNUT M. DAHL. Witnesses:

FREDERICK BIRD-SALL, MAURICE ASHER. 

